天津科技大学学报2016，Vol.31Issue(4)：30-34,5.DOI:10.13364/j.issn.1672-6510.20150145
不同水质对杜氏盐藻生长和生理的影响
Effects of Different Water on the Growth and Physiology of Dunaliella salina
摘要
Abstract
By analysing the growth parameters of Dunaliella salina in different water sources,we found out which kind of water was suitable for culturing Dunaliella salina.The basic components of five different kinds of water were determined according to GB 17378.4-2007.They are the seawater from Tianjin Central Fishing Port,the cooling water from Tianjin Beijiang Power Plant and three kinds of brine from Chaerhan Salt Lake of Qinghai Chaidamu Basin which were diluted 10-folds.Those different water was used to culture Dunaliella salina,then we analysised their influence on the physical parame-ters of Dunaliella salina.Except the extracted potassium brine,all the other four kinds of water can be used to culture Du-naliella salina.Although the effects of different water on the growth and physiology of Dunaliella salina were different, after 15 days’ culture with the processed brine which had been diluted 10-folds,the nitrate reductase activity was(4.41± 0.18)µg/(mg·h),which was significantly higher than that of the Dunaliella salina which was cultured by seawater.After 21 days,the chlorophyll was(24.9±1.0)mg/L;the dry weight of the Dunaliella salina was(409.5±21.1)mg/L,which was not significantly higher than that of the Dunaliella salina cultured by seawater.The net photosynthetic rate was(128.6± 3.0)µmol/(mg·h) ,and the respiration rate was(28.2 ± 0.9)µmol/(mg·h) .This shows that under identical conditions , Dunaliella salina cultured by processed brine which was diluted 10-folds can accumulate the same amount of dry matter as Dunaliella salina cultured by seawater.关键词
杜氏盐藻/水质/光合速率/生长Key words
Dunaliella salina/water quality/photosynthetic rate/growth分类
农业科技引用本文复制引用
李婕,衣丽霞,赵倩,徐仰仓..不同水质对杜氏盐藻生长和生理的影响[J].天津科技大学学报,2016,31(4):30-34,5.基金项目
天津市大学生创新创业训练计划资助项目(201510057096)；天津市科技兴海资助项目(KJXH2012-14) （201510057096）
